[Fot] Fuel injection

[J.C. Hassall]

After they said that they had no stock and were out of production, I asked
if they'd send a copy of the engineering drawing.  Um, no, it was only on
paper.  And apparently no one there oowns a cell phone with camera.  :-p

Are you offering to trace your backplate?  :-)

jim

On Fri, Jul 28, 2023 at 2:39 PM TeriAnn J. Wakeman <tjwakeman at gmail.com>
wrote:

> On 7/28/23 10:22 AM, J.C. Hassall wrote:
>
> Hi TeriAnn,
>
> That's great info, very extensive.  Months ago I asked ITG UK if they had
> one in stock (NLA in the "colonies").  They said that they had no stock
> (last sale was 14 years ago), so it would be bespoke and cost 71 UK pounds
> plus carriage, etc. Needless to say I declined.
>
> I bet they have the pattern on file. It is just a sheet of  aluminum with
> holes drilled in it. They should be able to make them up on demand cheaper
> than that. But maybe they have a min. price for specials.
>
> At worst someone could just trace their back plate and hand it to someone
> who has the special tools to cut one or more out.
>
> TeriAnn
>
>
>
> On Fri, Jul 28, 2023 at 11:39 AM TeriAnn J. Wakeman via Fot <
> fot at autox.team.net> wrote:
>
>> Here are a couple of possible resources for people trying to piece
>> together an EFI system with a focus for TR3-4A engines.
>>
>> Before TWM went out of business they offered DCOEs, intake manifolds,
>> and major EFI conversion components, including throttle bodies based up
>> the DCOE configuration.
>>
>> When TWM went out of business they sold their EFI business or
>> transformed into Borla Induction
>>
>> https://www.borlainduction.com
>>
>> Who produces the DCOE based throttle bodies and other major EFI
>> components.
>>
>> TWM sold their intake manifold business to Pierce Manifolds, who still
>> offers the TWM DCOE conversion kit for the TR four.
>>
>>
>> https://www.piercemanifolds.com/TRIUMPH_TR3_TR4_HIGH_PORT_WEBER_40_DCOE_p/k131.htm
>>
>> So you can still get the manifolds, linkage, EFI throttle bodies,
>> position sensors & such, all originally designed to work together as a
>> system.
>>
>> itg makes an air filter with holes properly spaced for the TR four using
>> TWM/Pierce manifolds and DCOEs or TWM/Borla throttle bodies. The
>> critical component is the back plate which I don't think is still being
>> mentioned in their web site. If you want to use a itg air filter (I have
>> one on my TR3 with TWM manifolds & DCOEs) ask for back plate part number
>> 28-JC-50.
>>
>> itg has a formula (for their filters only) that calculates the minimum
>> distance between the horn opening and the facing element for no negative
>> affect in air flow. The minimum distance is calculated by dividing the
>> inner diameter of the air horn by four.
>>
>> I think this is probably enough to piece together a mechanical fuel
>> injection system & put an air filter on it. No idea about a computer to
>> add the "E".
>>
>> TeriAnn
>
>
>

-- 
jim  W4BEA
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